Safety door handle for bus air doors



Nov. 15A, 1938. H. SCHH-:SINGER 2,137,065

SAFETY DOOR HANDLE FOR BUS AIR DOORS Filed June 24, 1938 lNvEN-roe Hans Sch/@Sawyer ATTO'RN EY Patented Nov. 1.5', 1938 UNITED STATES PATENT OFFICE 2,137,065 y SAFETY VDYOOR, HANDLE FOR. BUS DOORS Hans Schlesinger, New York, N. Y. Application June 24, 1938, Serial No. 215,647

8 Claims.

This invention relates to new and useful improvements in a safety door handle -for bus air doors.

The invention has for an object the construction of a safety handle which may be applied to control a bus air door, or doors, and constructed in a manner to prevent accidental opening or closing of the doors.

Heretofore it has been customary to construct buses Vwith a handle for controlling the doors arranged in the vicinity of the steering wheel of the bus. Frequently the operator touches this handle accidentally, causing the opening or closing of the doors.

The invention contemplates a construction `by Which the handle may be locked quickly and eiciently in `various positions to open the doors or close the doors, open the door or another only, or other combinations Vand arrangements.

Still further the. invention proposes to ,so arrange the device that it may be easily applied to the equipment in present day buses.

Another object of this invention is to provide an oil splash guard upon the handle in a manner to protect the drivers hand from being splashed with oil.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description 30 and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.V

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a horizontal sectional View of the front portion of a bus provided'with a door control handle and asafety arrangement constructed according to this invention.

Fig. 2 is a perspective view of the Vair 4control 40 valve and safety handle construction according Vto this invention.

Fig. 3 is a fragmentary sectional view of Fig.`2.

Fig. 4 is a perspective view of a -part of the safety door handle per se.

Fig. 5 is a sectional view on lthe line 5-5 of Fig. 4. Y

Fig. 6 is a bottom View of Fig. 4.

The safety door handle for bus air doors, according to this invention, includes an annular member Ill adapted to encircle and to Vbe ixedly attached upon a portion of the casing I;I which surrounds the operating stem I2 of an air control for opening and closing the doors I3 4of a bus I4. Reference numeral III` indicates the (Cl. PPI- 528) that the air control casing II is mounted on the side wall of the bus in the vicinity of the steering Wheel Illa. Ahandle I5 for controlling the air valve issecurely attached to the stem I2 and extends radially thereof. This handle is adapted to be moved by the bus driver for controlling the operation of the doors.` The details of this constructionwill. not be given in this specification since it forms no part ofthe invention and these constructions are generally known at the present time.

A double layer strip of material I6 engages about the annular member I and has its ends adjacent -each other. A bolt I1 engages through the ends` of the said double layer strip `I6 for clamping the' same xedly upon the annular member I0. Elements I8 are -xedly clamped between the bottom edge `portions of the layers of the strip I6 and form recesses i9 at certain areas for engagement by a holding lever as hereinafter more fully described.

The holding lever for the handle I comprises a lever 2D which is pivotally connected with the handle I5 by several lugs 2| and a pintle 22 arranged intermediate the ends of the handle and the lever. Thevouter end -of the lever is urged` away from the handle I5 by an expansion spring 23. Theinner end'of the lever 20 is formed with a reduced portion 20a adapted to engage selectively the recesses I9, and is guided by projections I5'` from the 4handle I5.

'Ihe elements I 8 must be xedly arranged in. predetermined positions Vto correctly locate the recesses I9. These recesses I9 should be located at positions so that the handle I5 will be at lpredetermined positions to open both doors, or selectively open Vone or the other of the doors of the bus. Buses generally are constructed with a front door and `a rear door. Thus a construc tion is provided for singly or jointly controlling thesedoors. Y

A shield 25 extends concentric with the stem I2 and -is attachedAupon-the handle I5 by several screws 26. This shield protects the drivers hand from being splashed by oil from the air valve. With present constructions it often happens that escaping -airr'will splash oil on the handle I5. With the vshield 25 the oil is prevented from reaching the outerend of the handle Whichris the portion which is gripped by the driver. Y

The `method of assembly of the device is as follows: Y

.Y The bolt .IIisgloosened; .the annular member I0 .is .fixedly `attached upon the ycasing II of the air valve. This may be accomplished by having a drive fit between these parts or by the use of a pin or other fastening element. The double layer strip I6 is then engaged over the annular member I0. While the bolt Il is still loose the elements I8 may be shifted to various positions along the bottom portion of the double layer strip. It is possible to shift these elements I8 so that the recesses I9 are located at the proper positions for the proper operation of the doors of the vehicle. I f desired it is possible to remove one or more of the elements I8 or to add additional elements, as may be desired.

These elements I8 are merely held in position frictionally. The upper ends are formed with split beaded portions I8a which are engaged in a receiving groove formed in the adjacent faces of the layers of the double strip I6. At the` areas where the elements I8 are located, the double strip I6 is formed with a cutout I6l arranged so that the elements I8 may extend from the top edge of this cutout and extend down wards to a location substantially in the same plane as the wide end portions of the double layer strip.

After the elements yhave been properly adjusted the bolt I I is tightened. This serves to rigidly secure the double layer strip of material upon the annular member I and'to cla-mp together the layers for frictionally gripping and holding the elements I8. The handle I and the control lever 2l] are now engaged in place. It is possible to press together the outer ends of the handle I5 and the control lever 20 to pivot the inner end 2lia of the control lever out` from one of the recesses I9. rIhen the handle I5 may be turned as desired. In the new position the lever 20 is released and the spring 23 will urge it into a locking position with Ythe end 20a re-engaging one of the recesses I9.

While have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as dened in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

l. A safety door handle for bus air doors, comprising an annular member adapted to encircle and be xedly attached on a portion of the casing surrounding the operating stem of an air control for opening and closing bus doors and the like, a double layer strip of material engaging about said annular member and having its ends adjacent each other, a bolt engaging through the ends of said double layer strip for clamping same upon said annular member, elements i'lxedly clamped between the bottom edge portions of the layers of said strip forming recesses, a handle for attachment on said operating stem, and a lever mounted on said handle and engageable in said recesses for holding the handle in diiferent fixed positions.

2. A safety door handle for bus air doors, cornprising an annular member adapted to encircle and be xedly attached on a portion of the casing surrounding the operating stern of an air control for opening and closing bus doors and the like, a double layer strip of material engaging about said annular member and having its ends;

adjacent each other, a bolt engaging through the ends of said double layer strip for clamping same upon said annular member, elements xedly clamped between the bottom edge portions of the layers of said strip forming recesses, a handle for attachment on said operating stem, and a lever mounted on said handle and engageable in said recesses for holding the handle in different xed positions, said double layer strip having a cutout area along its bottom portion in the vicinity of said elements so that the bottom ends of said elements are substantially in the same plane as the side ends of said double layer strip.

3. A safety door handle for bus air doors, comprising an annular member adapted to encircle and be fiXedly attached on a portion of the casing surrounding the operating stem of an air control for opening and closing bus doors and the like, a double layer strip of material engaging about said annular member and having its ends adjacent each other, a bolt engaging through the ends of said double layer strip for clamping same upon said annular member, elements iixedly clamped between the bottom edge portions of the layers of said strip forming recesses, a handle for attachment on said operating stern, and a lever mounted on said handle and engageable in said recesses for holding the handle in different xed positions, and an oil shield mounted on said handle.

4. A safety door handle for bus air doors, comprising an annular member adapted to encircle and be ilxedly attached on a portion of the casing surrounding the operating stem of an air control for opening and closing bus doors and the like, a double layer strip of material engaging about said annular member and having its ends adjacent each other, a bolt engaging throught the ends of said double layer of strip for clamping same upon said annular member, elements i'lxedly clamped between the bottom edge portions of the layers of said strip forming recesses, a handle for attachment on said operating stem, and a lever mounted on said handle and engageable in said recesses for holding the handle in different xed positions, and an oil shield mounted on said handle, and secured thereon by several screws.

5. A safety door handle for bus air doors, comprising an annular member adapted to encircle and be ixedly attached on a portion of the casing surrounding the operating stem of an air control for opening and closing bus doors and the like, a double layer strip of material engaging about said annular member and having its ends adjacent each other, a bolt engaging through the ends of said double layer strip for clamping same upon said annular member, elements fixedly clamped between the bottom` edge portions of the layers of said strip forming recesses, a handle for attachment on said operating stem, and a lever mounted on said handle and engageable in said recesses for holding the handle in different fixed positions, each of said elements having a beaded top edge formed with a split to make the same resilient, and said beaded top edge engaging a groove formed in the adjacent faces of said double layer strip.

6. A safety door handle for bus air doors, comprising an annular member adapted to encircle and be xedly attached on a portion of the casing surrounding the operating stem of an air control for opening and closing bus doors and the like, a double layer strip of material engaging about said annular member and having its ends adjacent each other, a bolt engaging through the ends of said double layer strip for clamping same upon saidannular member, elements xedly clamped for holding the handle in diierent xed positions, and a resilient element engaged between the outer ends of said handle and lever for urging the lever into an operative position.

7. A safety door handle for bus air doors, comprising an annular member adapted to encircle and be fixedly attached on a portion of the casing surrounding the'operating stem of an air control for opening and closing bus doors and the like, a double layer strip of material engaging about said annular member and having its ends adjacent each other, a bolt engaging through the ends of said double layer strip for clamping same upon said annular member, elements xedly clamped between the bottom edge portions of the layers of said strip forming recesses, a handle for attachment on said operating stem, a lever mounted on said handle and engageable in said recesses for holding the handle in diierent xed positions, and a resilient element engaged between the outer ends of said handle and lever for urging the lever into an operative position, said lever being pivotally. mounted intermediate of its yends upon said handle. n

8. A safety door handle for bus air doors, comprising an annular member adapted to encircle and be xedly attached on a portion of the casing surrounding the operating stem of an air control for opening and closing bus doors and the like, a

.double layer strip of material engaging about said annular member and having its ends adjacent each other, a bolt engaging through the ends of said double layer strip for clamping same upon said annular member, elements xedly clamped between the bottom edge portions of the layers of said strip forming recesses, a handle for attachment on said operating stern, a lever mounted upon said handle, the handle and the lever being formed with lugs, and a pintle engaging through these lugs for accomplishing the pivotal connections of these parts. v

HANS SCHLESINGER. 

